Pipe-wrench.



Patented luly 24, |900.

AEA

luF-m AHM (No Model.;

ATENT CFFICE.

ABRAHAM J. SAVVIN, OF SPRINGVILLE, CALIFORNIA.

PIPE-WRENCH.-

sPEeIFIcATIoN forming part of Letters Patent No. 654,283, dated .ittiy24., 1900.

Application filed Aprn s, 1900.

To all whom it may concern:

Be it known that I, ABRAHAM J. SAwIN, a citizen of the UnitedStates,residing at Springville, in the county of Ventura and State ofCalifornia, have invented a new and useful Pipe-Wrench,of which thefollowing is a speciication.

This invention relates to pipe-wrenches, and has for its object toprovide certain new and useful improvements whereby the jaws areyieldingly held together for convenient adjustment and application to apipe and also to bind lirmly upon the latter during the operation of thewrench.

To these ends the present invention consists in the combination andarrangement of parts, as will be hereinafter more fully described, shownin the accompanying drawings, and particularly pointed out in theappended claims, it being understood that changes in the form,proportion, size, and minor details may be made within the scope of theappended claims without departing from the spirit or sacrificing any ofthe ad,

vantages of the invention.

In the drawings, Figure 1 is a perspective view of a pipe-wrenchconstructed in accordance with the present invention. Fig. 2 is a detailperspective View of the head end of the handle, the jaws being removed.Fig. 3 is a detail sectional View taken longitudinally through the jaws.

Corresponding parts in the several figures of the drawings aredesignated by like characters of reference.

Referring to the accompanying drawings, 1 designates the shank or handleof the wrench, having one end enlarged to form a transverse head 2,which is provided with a longitudinal bifurcation 3, forming theopposite ears 4, between which the jaws of the wrench are mounted.

The jaw 5 is bowed or hook-shaped, having its rear end received betweenthe ears 4 of the head, located at one side thereof, and mounted toswing laterally upon a transverse pivot-pin 6. The opposite free end ofthe jaw is provided with an abrupt inwardly-extending shoulder 7. Theother jaw 8 has its rear end received between the ears 4, located op-Serial No. 11,362. (No model.)

posite the jaw 5 and mounted upon a transverse pivot-pin 9, so that bothjaws may swing in the same direction transversely of the handle. Theouter free end of the jaw 8 is adapted to cooperate with the shoulderedfree end of 5' 5 the jaw 5 and is serrated, as at 10, so as to bite intothe pipe. An angular transverse groove 11 is formed across the freeextremity of the jaw 8 and is tapered longitudinally, so

as to receive a similarly shaped and tapered 6o the latter may bechanged, so as to present a new edge.

The opposite jaws are pivotally connected by means of a pair of links13, located intermediate of the ends of the jaws and upon the outersides thereof. The adjacent ends of the links are pivotally connected tothe opposite ends of a common pivot-pin 14, extending transverselythrough the adjacent jaw and projecting at opposite sides thereof, so asto connect with the links.

Intermediate of the ends of the hook-shaped jaw 5 and in the inner sidethereof there is provided a suitable socket or recess 15, through whichone of the pivot-pins 14 passes. Mounted within this socket andembracingv the pivot-pin is a coiled spring 16, having one arm 17engaging against the rear wall of the socket and its opposite arm 18extending out4 of the socket and connected to a transverse pin 19,extending between the opposite links 13 and located between the jaws.

From the foregoing description it will be apparent that the springnormally forces the free ends of the jaws together, so as to insure apositive grip upon the pipe and also yield- 9o IOO gaging a Wall of thesocket and the transverse pin, said spring normally forcing the jawstogether.

In testimony that I claim the foregoing as r 5 my own I have hereto axedmy signature in the presence of two witnesses.

ABRAHAM J. s'AwIN Witnesses:

R; W. CLARK, FRANK M. VALE.

